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Impact of Vocal Effort on Respiratory and Articulatory Kinematics

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Title: Impact of Vocal Effort on Respiratory and Articulatory Kinematics
Language: English
Authors: Abur, Defne (ORCID 0000-0002-0410-8487), Perkell, Joseph S., Stepp, Cara E. (ORCID 0000-0002-8045-252X)
Source: Journal of Speech, Language, and Hearing Research. Jan 2022 65(1):5-21.
Availability: American Speech-Language-Hearing Association. 2200 Research Blvd #250, Rockville, MD 20850. Tel: 301-296-5700; Fax: 301-296-8580; e-mail: slhr@asha.org; Web site: http://jslhr.pubs.asha.org
Peer Reviewed: Y
Page Count: 17
Publication Date: 2022
Sponsoring Agency: National Institute on Deafness and Other Communication Disorders (NIDCD) (DHHS/NIH)
Contract Number: R01DC015570
T32DC013017
F31DC019032
Document Type: Journal Articles
Reports - Research
Descriptors: Young Adults, Articulation (Speech), Speech, Human Body, Biomechanics
DOI: 10.1044/2021_JSLHR-21-00323
ISSN: 1092-4388
Abstract: Purpose: The goal of this study was to examine the effects of increases in vocal effort, without changing speech intensity, on respiratory and articulatory kinematics in young adults with typical voices. Method: A total of 10 participants completed a reading task under three speaking conditions: baseline, mild vocal effort, and maximum vocal effort. Respiratory inductance plethysmography bands around the chest and abdomen were used to estimate lung volumes during speech, and sensor coils for electromagnetic articulography were used to transduce articulatory movements, resulting in the following outcome measures: lung volume at speech initiation (LVSI) and at speech termination (LVST), articulatory kinematic vowel space (AKVS) of two points on the tongue dorsum (body and blade), and lip aperture. Results: With increases in vocal effort, and no statistical changes in speech intensity, speakers showed: (a) no statistically significant differences in LVST, (b) statistically significant increases in LVSI, (c) no statistically significant differences in AKVS measures, and (d) statistically significant reductions in lip aperture. Conclusions: Speakers with typical voices exhibited larger lung volumes at speech initiation during increases in vocal effort, paired with reduced lip displacements. To our knowledge, this is the first study to demonstrate evidence that articulatory kinematics are impacted by modulations in vocal effort. However, the mechanisms underlying vocal effort may differ between speakers with and without voice disorders. Thus, future work should examine the relationship between articulatory kinematics, respiratory kinematics, and laryngeal-level changes during vocal effort in speakers with and without voice disorders.
Abstractor: As Provided
Entry Date: 2022
Accession Number: EJ1325581
Database: ERIC
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  Data: Impact of Vocal Effort on Respiratory and Articulatory Kinematics
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  Data: <searchLink fieldCode="AR" term="%22Abur%2C+Defne%22">Abur, Defne</searchLink> (ORCID <externalLink term="https://orcid.org/0000-0002-0410-8487">0000-0002-0410-8487</externalLink>)<br /><searchLink fieldCode="AR" term="%22Perkell%2C+Joseph+S%2E%22">Perkell, Joseph S.</searchLink><br /><searchLink fieldCode="AR" term="%22Stepp%2C+Cara+E%2E%22">Stepp, Cara E.</searchLink> (ORCID <externalLink term="https://orcid.org/0000-0002-8045-252X">0000-0002-8045-252X</externalLink>)
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  Data: <searchLink fieldCode="SO" term="%22Journal+of+Speech%2C+Language%2C+and+Hearing+Research%22"><i>Journal of Speech, Language, and Hearing Research</i></searchLink>. Jan 2022 65(1):5-21.
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  Data: American Speech-Language-Hearing Association. 2200 Research Blvd #250, Rockville, MD 20850. Tel: 301-296-5700; Fax: 301-296-8580; e-mail: slhr@asha.org; Web site: http://jslhr.pubs.asha.org
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  Data: 17
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  Label: Publication Date
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  Data: 2022
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  Data: National Institute on Deafness and Other Communication Disorders (NIDCD) (DHHS/NIH)
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  Data: 10.1044/2021_JSLHR-21-00323
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  Data: 1092-4388
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Purpose: The goal of this study was to examine the effects of increases in vocal effort, without changing speech intensity, on respiratory and articulatory kinematics in young adults with typical voices. Method: A total of 10 participants completed a reading task under three speaking conditions: baseline, mild vocal effort, and maximum vocal effort. Respiratory inductance plethysmography bands around the chest and abdomen were used to estimate lung volumes during speech, and sensor coils for electromagnetic articulography were used to transduce articulatory movements, resulting in the following outcome measures: lung volume at speech initiation (LVSI) and at speech termination (LVST), articulatory kinematic vowel space (AKVS) of two points on the tongue dorsum (body and blade), and lip aperture. Results: With increases in vocal effort, and no statistical changes in speech intensity, speakers showed: (a) no statistically significant differences in LVST, (b) statistically significant increases in LVSI, (c) no statistically significant differences in AKVS measures, and (d) statistically significant reductions in lip aperture. Conclusions: Speakers with typical voices exhibited larger lung volumes at speech initiation during increases in vocal effort, paired with reduced lip displacements. To our knowledge, this is the first study to demonstrate evidence that articulatory kinematics are impacted by modulations in vocal effort. However, the mechanisms underlying vocal effort may differ between speakers with and without voice disorders. Thus, future work should examine the relationship between articulatory kinematics, respiratory kinematics, and laryngeal-level changes during vocal effort in speakers with and without voice disorders.
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